12
GSD 20 Sounder Module installation instructions
GSD 20 Sounder Module
installation instructions
All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded, or stored in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or of any revision hereto, provided that such electronic or printed copy of this manual must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and supplemental information concerning the use and operation of this and other Garmin products.
Garmin®, DCG®, and See-Thru® are a registered trademark of Garmin Ltd. or its subsidiaries and may not be used without the express permission of Garmin.
Safety InformationWARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. This Notice is being provided in accordance with California’s Proposition 65. If you have any questions or would like additional information, please refer to our Web site at http://www.garmin.com/prop65.
Limited WarrantyThis Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin will at its sole option repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost. This warranty does not cover failures due to installation errors, abuse, misuse, accident, or unauthorized alteration or repairs.THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE.IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or consequential damages, so the above limitations may not apply to you.Garmin retains the exclusive right to repair or replace the product or offer a full refund of the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.Products sold through online auctions are not eligible for rebates or other special offers from Garmin. Online auction confirmations are not accepted for warranty verification. To obtain warranty service, an original or copy of the sales receipt from the original retailer is required. Garmin will not replace missing components from any package purchased through an online auction.To obtain warranty service, contact your local Garmin authorized dealer or call Garmin Product Support for shipping instructions and an RMA tracking number. The product should be securely packed with the tracking number clearly written on the outside of the package. The product should then be sent, freight charges prepaid, to any Garmin warranty service station. A copy of the original sales receipt is required as the proof of purchase for warranty repairs.
July 2005 Part Number 190-00225-00 Rev. E Printed in Taiwan
Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. Tel. 913/397.8200 or 800/800.1020 Fax 913/397.8282
Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K. Tel. 44/0870.8501241 Fax 44/0870.8501251
Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099
© Copyright 2004, 2005 Garmin Ltd. or its subsidiaries
www.garmin.comhttp://www.garmin.com/prop65
1GSD 20 Sonar Module
INTRODUCTIONThank you for choosing the Garmin GSD 20. The GSD 20 is an intelligent, remote sounder module designed to include powerful features as found in other Garmin sounders, including Depth Control Gain (DCG®) and See-Thru® technology. When used with compatible Garmin chartplotters, it provides full-featured depth sounder functions. It may interface to multiple head units, providing for complete sounder control from multiple stations, including transmit frequency, range, and gain adjustments. To get successful results from your GSD 20, take time to read through this installation guide. If any items are missing, please contact your Garmin dealer immediately.
Included Equipment:• GSD 20 Sounder Module• 30’ (9.1 m) Power/Data Cable • Installation Guide for the GSD 20
Optional TransducersThe transducer acts as the eyes and ears of your new sonar. The transducer transmits sound waves toward the bottom in a cone shape. The larger the cone angle, the larger the coverage area at a given depth.
Proper transducer selection and installation are critical to the operation of your unit. Since mounting locations vary, see your local dealer or contact Garmin Product Support for further information. A full list of transducers can be found at www.garmin.com.
INTRODUCTION
Power/Data Connector
LED Status Indicator
Transducer Connector
Mounting Holes
2 GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
The GSD 20 must be properly installed according to the following instructions to get the best possible performance. To complete the installation, you need the appropriate fasteners. If you experience difficulty with the installation, contact Garmin Product Support.
The module should be mounted in an out-of-the-way location that is dry and well ventilated. Avoid mounting the module where it can be submerged in liquids or exposed to extreme temperatures. Be sure to mount the module so that the LED is visible.
To install the GSD 20 module:1. Once the location is chosen, place the unit. Be sure to allow enough clearance for attaching the cables. Using the module as a template,
mark the location of the four mounting holes. If needed, additional mounting holes may be drilled in the side mounting flanges of the module.
2. Attach the GSD 20 to the mounting location using the appropriate fasteners.3. Mount the transducer according to the instructions provided with the transducer.4. Route the cables to the mounting location of the display unit. Use the appropriate tie-wraps, fasteners, and sealant to secure the cable
along the route and through any bulkhead or deck.5. Once the GSD 20 module has been installed, connect the power/data and transducer cables to the appropriate receptacle. 6. Refer to the following wiring diagrams for connecting the GSD 20 to compatible Garmin units.
NOTE: You can extend the wiring of the GSD 20 power/data cable up to 100’ (30 m) total length. Use 22 AWG, 4-conductor shielded cable for data cable and 18 AWG for power. Transducer cable extensions are available through your Garmin dealer.
3GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
WIR
EC
OLO
RG
AR
MIN
GS
D 2
0S
OU
ND
ER
MO
DU
LE
BLAC
K
OR
ANG
E
RED
WH
ITE/
BLU
E
BLAC
K
RED
WH
ITE/
BLU
E
WH
ITE/
BRO
WN
WH
ITE/
BRO
WN
WIR
EC
OLO
R
5 A
FUSE
OR
ANG
E
2 A
FUSE
TO
TRA
NS
DU
CE
R
BATT
ERY
10-3
5 VO
LTS
DC
BASI
C W
IRIN
G FO
R TH
E GAR
MIN
GSD
20
TO A
SIN
GLE
G
PSM
AP 2
006/
2006
C/20
10/2
010C
/300
5C/3
006C
/301
0C
Notes
:
1. Po
wer a
nd gr
ound
wire
s req
uire
18 A
WG.
All
othe
r wire
s req
uire
22 A
WG.
Use
4-co
nduc
tor,
shiel
ded w
iring
for r
uns o
ver 3
0’ (9
.1 m
).2.
Refe
r to t
he G
PSM
AP 20
06/2
006C
/201
0/20
10C/
3005
C/30
06C/
3010
C In
stalla
tion I
nstru
ction
s for
wiri
ng th
e GPS
17 se
nsor
and o
ther
devi
ces.
3. Fo
r run
s ove
r 30’
(9.1
m),
the d
rain
wire
mus
t be c
onne
cted t
o the
shiel
ding
of th
e ext
ensio
n run
. Do n
ot te
rmin
ate th
e end
of th
e shi
eld dr
ain w
ire.
4. W
hen m
ultip
le GP
SMAP
3005
C/30
06C/
3010
C un
its ar
e in u
se, o
nly w
ire th
e GSD
20 to
one u
nit. T
he G
SD 20
info
rmati
on is
tran
smitt
ed to
all
units
conn
ected
to th
e Gar
min
Mar
nine
Netw
ork.
4 GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
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BATT
ERY
10-3
5 VO
LTS
DC
BASI
C W
IRIN
G FO
R TH
E GAR
MIN
GSD
20
TO A
DUA
L GPS
MAP
200
6/20
06C/
2010
/201
0C
*Thi
s diag
ram
does
not a
pply
to th
e GPS
MAP
3005
C/30
06C/
3010
C. R
efer
to N
ote 4
on th
e Sin
gle G
PSM
AP 20
06/2
006C
/201
0/20
10C/
3005
/C30
06C/
3010
C di
agra
m.
Notes
:
1. Po
wer a
nd gr
ound
wire
s req
uire
18 A
WG.
All
othe
r wire
s req
uire
22 A
WG.
Use
4-co
nduc
tor,
shiel
ded w
iring
for r
uns o
ver 3
0’ (9
.1 m
).2.
Refe
r to t
he G
PSM
AP 20
06/20
06C/
2010
/2010
C In
stalla
tion I
nstru
ction
s for
wiri
ng th
e GPS
17 se
nsor
and o
ther
devi
ces.
3. Fo
r run
s ove
r 30’
(9.1
m),
the d
rain
wire
mus
t be c
onne
cted t
o the
shiel
ding
of th
e ext
ensio
n run
. Do n
ot te
rmin
ate th
e end
of th
e shi
eld dr
ain w
ire.
4. Us
e uni
t #1 t
o upd
ate th
e GSD
20 so
ftwar
e.
5GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
WIR
EC
OLO
RG
AR
MIN
GS
D 2
0S
OU
ND
ER
MO
DU
LE
BLAC
K
OR
ANG
E
RED
WH
ITE/
BLU
E
BLAC
K
RED
BLU
E
YELL
OW
WH
ITE/
BRO
WN
WIR
EC
OLO
RFU
SE1.
5AFU
SE 2A
TO
TRA
NS
DU
CE
RO
N
OFF
SEE
NO
TE 3
OPT
ION
1
ON
OFFSE
E N
OTE
3 O
PTIO
N 2
BATT
ERY
10-3
5 VO
LTS
DC
BASI
C W
IRIN
G FO
R TH
E GAR
MIN
GSD
20
TO A
SIN
GLE
GPS
MAP
276
C/29
6/37
6C/3
96
Notes
:
1. Po
wer a
nd gr
ound
wire
s req
uire
18 A
WG.
All
othe
r wire
s req
uire
22 A
WG.
Use
4-co
nduc
tor,
shiel
ded w
iring
for r
uns
over
30’ (
9.1 m
).2.
For r
uns o
ver 3
0’ (9
.1 m
), th
e dra
in w
ire m
ust b
e con
necte
d to t
he sh
ieldi
ng of
the e
xten
sion r
un. D
o not
term
inate
the
end o
f the
shiel
d dra
in w
ire.
3. T
he O
rang
e wire
mus
t be p
ulled
low
(-) in
orde
r for
the G
SD 20
to po
wer o
n.
Optio
n 1: I
f the
GSD
20 is
wire
d to a
circ
uit t
hat i
s swi
tched
on th
e Red
(+) w
ire, c
onne
ct th
e Ora
nge w
ire to
grou
nd.
The G
SD 20
and t
he G
PSM
AP 27
6C/2
96/3
76C/
396 t
urn o
n/of
f whe
n pow
er is
appl
ied/re
mov
ed to
the R
ed w
ire.
Op
tion 2
: If t
he R
ed (+
) wire
is ap
plied
dire
ctly t
o a po
wer s
ourc
e, in
stall
a swi
tch be
twee
n the
Ora
nge w
ire an
d gro
und.
The G
SD 20
turn
s on/
off w
hen g
roun
d is a
pplie
d/re
mov
ed to
the O
rang
e wire
.
6 GSD 20 Sonar Module
INSTALLATION INSTRUCTIONSBA
SIC
WIR
ING FO
R TH
E GAR
MIN
GSD
20
TO A
SIN
GLE
GPS
MAP
182
/182
C/19
2C/2
32
WIR
EC
OLO
RG
AR
MIN
GS
D 2
0S
OU
ND
ER
MO
DU
LE
BLAC
K
OR
ANG
E
RED
WH
ITE/
BLU
E
BLAC
K
RED
BLU
E
BRO
WN
WH
ITE/
BRO
WN
WIR
EC
OLO
RFU
SE1.
5AFU
SE 2A
TO
TRA
NS
DU
CE
RO
N
OFF
SEE
NO
TE 3
OPT
ION
1
BATT
ERY
10-3
5 VO
LTS
DC
ON
OFF
SEE
NO
TE 3
OPT
ION
2
Notes
:
1. Po
wer a
nd gr
ound
wire
s req
uire
18 A
WG.
All
othe
r wire
s req
uire
22 A
WG.
Use
4-co
nduc
tor,
shiel
ded w
iring
for r
uns o
ver 3
0’ (9
.1 m
).2.
For r
uns o
ver 3
0’ (9
.1 m
), th
e dra
in w
ire m
ust b
e con
necte
d to t
he sh
ieldi
ng of
the e
xten
sion r
un. D
o not
term
inate
the e
nd of
the s
hield
dr
ain w
ire.
3. Th
e Ora
nge w
ire m
ust b
e pul
led lo
w (-)
in or
der f
or th
e GSD
20 to
powe
r on.
Op
tion 1
: If t
he G
SD 20
is w
ired t
o a ci
rcui
t tha
t is s
witch
ed on
the R
ed (+
) wire
, con
nect
the O
rang
e wire
to gr
ound
. The
GSD
20 an
d th
e GPS
MAP
182/
182C
/192
C/23
2 tur
ns on
/off
when
powe
r is a
pplie
d/re
mov
ed to
the R
ed w
ire.
Op
tion 2
: If t
he R
ed (+
) wire
is ap
plied
dire
ctly t
o a po
wer s
ourc
e, in
stall
a swi
tch be
twee
n the
Ora
nge w
ire an
d gro
und.
The G
SD 20
tu
rns o
n or o
ff wh
en gr
ound
is ap
plied
or re
mov
ed to
the O
rang
e wire
.
7GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
WIR
EC
OLO
RG
AR
MIN
GS
D 2
0S
OU
ND
ER
MO
DU
LE
BLAC
K
OR
ANG
EO
RAN
GE
RED
WH
ITE/
BLU
E
BLAC
K
RED
BLU
E
BRO
WN
WH
ITE/
BRO
WN
WIR
EC
OLO
RFU
SE 5AFU
SE 2A
TO
TRA
NS
DU
CE
R
BATT
ERY
10-3
5 VO
LTS
DC
BASI
C W
IRIN
G FO
R TH
E GAR
MIN
GSD
20
TO A
SIN
GLE
GPS
MAP
172
/172
C
Notes
:
1. Po
wer a
nd gr
ound
wire
s req
uire
18 A
WG.
All
othe
r wire
s req
uire
22 A
WG.
Use
4-co
nduc
tor,
shiel
ded w
iring
for r
uns o
ver 3
0’ (9
.1 m
).2.
Refe
r to t
he G
PSM
AP 17
2/17
2C O
wner
’s M
anua
l for
wiri
ng th
e GPS
17 se
nsor
and o
ther
devi
ces.
3. Fo
r run
s ove
r 30’
(9.1
m),
the d
rain
wire
mus
t be c
onne
cted t
o the
shiel
ding
of th
e ext
ensio
n run
. Do n
ot te
rmin
ate th
e end
of th
e shi
eld dr
ain w
ire.
8 GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
Blink CodesOnce the unit is installed, it switches on when the display unit is powered on (or the GSD remote power line is pulled low, with power applied). The two-color (Green/Red) LED on the GSD 20 indicates the current operational status of the module. Codes are:
Code StatusGreen blinking, on for 1 second, off for 1/2 second (slow blink) GSD 20 is servicing one directly wired connection and the display
device is operating properly. The user should see sonar data on the display unit.
Green blinking, on for 1/2 second, off for 1/4 second (fast blink) GSD 20 is servicing two dirctly wired connections and the two display devices are operating properly. The user should see sonar data on both display units.
Red blinking, on for 1 second, off for 1/2 second (slow blink) GSD 20 is powered on but is waiting to connect to a display device. In this state, the GSD 20 does not transmit any sonar signals and is not sending out any sonar information to display units. If a display unit is connected and this code persists, check the wiring.
Solid Red (no blink) Software failure - Call Garmin Product Support. If the cause is a software error, the display unit can show the error. Power must be cycled to clear the error.
Red blinking, on for 1/10 second, off for 1/10 second (very fast blink)
System alarm. The display device gives a message indicating the type of failure. After the alarm condition is fixed, power must be cycled on the GSD 20 to clear the alarm.
9GSD 20 Sonar Module
INSTALLATION INSTRUCTIONS
Physical SpecificationsSize: 6.75” L x 4.75” W x 2.00” H (17.2cm x 12.1cm x 5.1cm) Weight: 1.5 lbs. (.680Kg)Case: Fully gasketed, high-impact plastic and aluminum alloy, waterproof to IEC 529-IPX-7Temp Range: 5°F to 158°F (-15°C to 70°C)
PowerSource: 10-35 Vdc Usage: 18 watts max.Fuse: AGC/3AG - 2.0 Amp
SonarSounder Power: 500 watts (RMS) 4000 watts (peak to peak) Frequency: 50/200 kHz Depth: 1500 foot max depth*
* Depth capacity is dependent on water salinity, bottom type, and other water conditions.
Data OutputSource: Proprietary Garmin data format.
© Copyright 2004, 2005 Garmin Ltd. or its subsidiaries
Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A.
Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K.
Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
www.garmin.com
Part Number 190-00255-00 Rev. E
